baber/WOPTO huggingface dataset:
Patent GB-442189-A (GB)
Title: Improvements in or relating to rotary valves for internal combustion engines
IPC: F01L7/04
Filed: 1935-04-12
Abstract: 442,189. Valves. HALL, C. W., 1301, South Ogden Street, Denver, Colorado, U.S.A. April 12, 1935, No. 11425. [Classes 7 (ii) and 7 (vi)] Inlet at 38 and exhaust at 33 are controlled by a rotary valve 14, which may be coaxially arranged in the cylinder head, and is pressed axially by a sealing-plate 15, the cylinder exhaust port 31 communicating with a passage 36 in the valve leading to the port 33 in the centre of the cap 20, and the cylinder inlet port communicating with the port 38 by a second passage (not shown) opening on the cylindrical wall of the valve. The port 31 is surrounded by an axially-expanding sealing-ring 32, and a similar ring 35 surrounds the upper end of the passage 36. The sealing-plate 15 may be formed with a flange 16 fitted with rings 17, and is pressed upwards by a leaf spring 41. The rings 32, 35 are composed of bevelled sections as shown. Other forms of bevelled rings are described, or the upper ring 35 may consist of two flat rings, the lower of which is of cork or other cushioning-material. The valve and the sealing plate 15 may have hollow spaces filled with cooling-salts. Lubricating.-Oil is supplied by a tube 43 to a lubricating-button 45 placed in a recess in the sealing-plate 15 and having a central opening 47 leading to radial oil grooves in the upper face of the button. A spring 46 holds the button against the valve. The oil is carried upwards around the valve by helical grooves.
Patent GB-411270-A (GB)
Title: Improvements in or relating to impulse transmitters of the type used in telephone systems
IPC: H04M17/02
Filed: 1933-04-19
Abstract: 411,270. Impulse transmitters. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, SUGGARS, L. C., and WARRINGTON, A., c/o General Electric Co., Stoke, Coventry. April 19, 1933, No. 11427. [Class 40 (iv).] In an impulse transmitter having restricted impulsing facilities, e.g. at a call box where coin insertion is necessary to permit impulsing except in calls to an operator, one or more trains less in number than the minimum for a subscriber call are freely permitted as a result of setting the transmitter for a particular first digit and under the control of means which counts the digits dialled. A short circuit about the impulse springs, normally opened by coin insertion, is also opened when the particular first digit is dialled, the short circuit being re-imposed when the dial is set for a subsequent digit dependent on the number of free digits permitted. The impulse springs 3 are normally short-circuited over springs 2 closed by pin 16 on ratchet wheel 9 normally held by pawl 25 in a position displaced, in a clockwise direction, from that shown. When a digit not exceeding 9 is dialled, impulses are sent out in the ordinary manner provided the short-circuit over 2 has been removed by coin insertion, the ratchet wheel 9 being in such a position that it is not affected by a pawl 7 carried by the dial shaft. If, however, the first digit is 0, a pin 30 rotating with the dial shaft (counterclockwise) engages a tail 31 on pawl 25 to release ratchet wheel 9 which thereupon takes up the position against stop 14 as shown. The short circuit at springs 2 is removed when pin 16 moves away from the springs, so that the first digit is sent out, and when the next digit is dialled, pawl 7 moves the ratchet wheel 9 clockwise and holding pawl 25 takes up a tooth. If only one free digit is permitted, the ratchet wheel will now have been restored to a position in which pin 16 closes the short-circuiting springs 2. The number of such free digits is adjusted by rotating the plate 22 carrying stop 14 about the axis of the ratchet wheel, the plate 22 being held in adjusted position by passing a pin 23 through a selected one of holes 24 in the plate. If there is no provision for lost motion in the dial pin 30 may be transferred to hole 29.
Patent GB-513705-A (GB)
Title: Improvements in material for structural parts, and parts made therefrom
IPC: C04B26/02
Filed: 1938-04-14
Abstract: 513,705. Fibrous compositions. HASEKE, G. A., and STRUBE, M.(trading as TORFITWERKE G. A. HASEKE & CO.). April 14, 1938, No. 11491. Convention date, Nov. 12, 1937. Addition to 497,320, [Group IV]. [Class 70] In the manufacture of structural plates, doors, walls and like structural elements according to the parent Specification the artificial resin binders are replaced by other binders such as casein and dextrine. Reference has been directed by the Comptroller to Specifications 300,982, [Class 70], and 345,390.
Patent GB-659349-A (GB)
Title: Improvements in and relating to a friction reducing device for machines or machine tools with slide tracks
IPC: B23Q1/26
Filed: 1949-04-29
Abstract: 659,349. Rectilinear-motion-bearings. SOC. GENEVOISE. D'INSTRUMENTS DE PHYSIQUE. April 29, 1949, No. 11494. Convention date, May 5, 1948. [Class 12 (i)] A rectilinear-motion bearing for relieving the pressure of a slide 2 on tracks-3, 4 comprises a row of spaced roller members 9, a row of spaced supporting rollers 8 bearing against the underside of the slide 2, and a plurality of connecting rods 10, 11 arranged. in zig-zag fashion connecting the rollers 9 and supporting members 8. A tensioning device is mounted . on the slide and engages a roller member 9 at one extreme end of the row, the extreme member at the other end of the row being engaged by a portion of the slide 2. One such bearing is disposed on each side of the slide 2 and is . enclosed by a cover plate 7. The tensioning device may comprise. a spring pressed piston 15 sliding in a bore 16 in the slide 2. In a modification, the spring tension. is adjustable by means of a screw 18, Fig. 5, having a graduated head 19. In a further modification, the piston is replaced by a nut 22, Fig. 6, which may be moved axially by rotation of a screw 20. Alternatively the piston may be controlled by hydraulic pressure. In the embodiment shown in Fig. 8, two trains of rollers are arranged symmetrically about a central fixed point 27 to which they are connected.
Patent GB-873500-A (GB)
Title: Arrangements consisting of electronic switching means for establishing the exclusive "or"-condition
IPC: H03K19/21
Filed: 1958-04-11
Abstract: 873,500. Diode gating circuits. STANDARD TELEPHONES & CABLES Ltd. April 11, 1958 [April 13, 1957], No. 11516/58. Class 40(6) In an "EXCLUSIVE-OR" circuit the earthing of either of input lines a, b, but not both, causes a potential difference to be established between output lines c, d, due to the potential difference produced across the centre-tapped impedance R3 as a result of the asymmetry produced by the earthing. The impedance R3 may be replaced by two oppositely poled diodes Fig. 2 (not shown). In the arrangement illustrated the potential difference between the lines c, d is used to energized a relay C via the transistor T. Alternatively the relay C may be operated directly from the output on lines c, d.
Patent GB-501701-A (GB)
Title: Electron discharge devices with successive electrically controlled multiple emissions
IPC: H01J43/22
Filed: 1938-04-14
Abstract: 501,701. Electron multipliers. STANDARD TELEPHONES & CABLES, Ltd. April 14, 1938, No. 11550. Convention date, May 5, 1937. [Class 39 (i)] An electron-discharge device of the electron multiplier type comprises a large-area photoelectric cathode 3, a plurality of grid-like secondary-electron emitting electrodes 5<1> ... 5<5>, a collecting, anode 6 and concentrating electrodes 7<2> ... 7<5> each on the anode side of a grid electrode and having a potential negative to that electrode or each surrounding and directly connected to that grid. The electrode 7<1> concentrates electron from cathode 3 on electrode 5<1>. The lens 14 by which the image rays are focused on the cathode 3 may be mounted on the glass envelope 1 ; the cathode surface comprises a layer of caesium, rubidium, &c. deposited on a thin silver layer on a mica sheet, or the layer may be deposited on the inner surface of the envelope. The concentrating electrodes 7 may surround and be connected to the grids 5 to form electronic lenses, the number of external connections being much reduced thereby, Fig. 5 (not shown). The concentration may be assisted by an external magnetic field. In Fig. 2, the cathode 3 may be mounted on an opaque support, the secondary electrons being directed into the electrode structure by the electrode 7<1>.
Patent GB-1213833-A (GB)
Title: Improvements in or relating to material separation apparatus
IPC: A01D45/00
Filed: 1968-03-08
Abstract: 1,213,833. Sugar cane harvesters. MASSEY-FERGUSON (AUSTRALIA) Ltd. 8 March, 1968 [9 March, 1967], No. 11574/68. Heading A1F. [Also in Division B2] Trash is separated from chopped sugar cane by projecting the chopped cane by means of a slat-conveyer 9 against a swingable or pivotable obstruction 18 which causes the cane to fall through a separation zone in which it is acted upon by an air stream which removes the trash from the falling cane by entrainment. In a harvester including a gathering wall 2 and a gathering auger 3, Fig. 1, sugar cane is topped by a top-cutting mechanism 4 and cut at its base by a horizontally mounted disc 5 and is fed by conveyers 6, 7 through a cane-chopping mechanism 8 from which it is discharged on to the conveyer 9. The obstruction 18 may consist of straps of flexible material, such as leather, plastics or rubber, which may be weighted and which are mounted on the underside of a hood 15 and extend across the width of the conveyer. Alternatively, chains or mesh material may be used; or rigid baffles may be pivotally attached to the hood. The air is blown through an aperture 21, Figs. 4 and 5, in one side wall 20 of the hood and is discharged with the trash through an aperture 23 in the opposite side wall 22. The cleaned chopped cane falls into a collecting bin 10. In Fig. 6, a sill 24 is provided adjacent the aperture 23 and projects in the path of the falling cane to direct the latter towards the inlet 21 thereby reducing the possibility of the cane pieces being ejected by the air stream through the aperture 23 and providing a greater space for the air to impart sufficient velocity to the trash.
Patent GB-415982-A (GB)
Title: Improvements in or relating to draw-out types of electric switchgear
IPC: H02B1/00
Filed: 1934-04-18
Abstract: 415,982. Switchgear structures ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and HEATH, A. A., Lydstep, Rowley Park, Stafford. April 18, 1934, No. 11676. [Class 38 (v).] In horizontally-withdrawable switchgear with busbar selection by means of withdrawable plugs 5, incorrect coupling thereof is prevented by an interlock bar 20 associated with the pair of contacts 8, 9 of each phase, the bars being simultaneously operable by a handle 26 and rack-and-pinion mechanism. The plug 5 is screwed at 11 into contact 8 or 9 and carries a pin 19 which, in the position shown, obstructs downward movement of 20. The latter has an aperture 21 adapted to be moved into register with contact 9 to enable that contact to be connected to the upper set of busbars, but only when all plugs 5 have been removed from contacts 8. When plugs 5 are fixed in contacts 9, the engagement of pins 19 with apertures 21 prevents movement of bars 20 to free the contacts 8 from obstruction. A window 29 and position indicator are provided. The plug 5 is in two parts, the outer having a pin 15 engaging with play a hole 16 in the inner part, to which the pin 15 is secured by a cross-pin 14. The plug parts are of hexagonal or other polygonal section to facilitate manipulation by a box spanner and electrical connection by flat braiding 18.
Patent GB-117789-A (GB)
IPC: F16L19/03
Abstract: 117,789. Speers, T. March 18, 1918. Spigot-and-socket joints with packing at base or mouth of socket.-In a hosepipe coupling, the connecting-piece a is provided with a tapered extension a<4> beyond the collar a<2> to form a support for the washer b. This prevents loss of the washer when the coupling is disconnected.
Patent GB-297449-A (GB)
Title: Improvements in and relating to methods for heating crucibles
IPC: F27B14/14
Filed: 1928-04-21
Abstract: 297,449. Deutsche Gold-und Silber- Scheideanstalt vorm. Roessler. Sept. 23, 1927, [Convention date]. Void [Published under Sect, 91 of the Acts]. Crucible furnaces. - In a crucible furnace the gases from tangentially-delivering burners are guided by helically-formed surfaces. With a single burner delivering through an orifice f the helical surface h may make one complete turn as shown, and where two diametrically opposite burners are used, the surfaces make only half a turn. In both cases the pitch of the helix is so chosen that the circulating gases do not interfere with the flame at the burner mouth. A helical rib which may be formed on the crucible, may be arranged to enclose completely the stream of heating-gases.
Patent GB-437273-A (GB)
Title: Process of dyeing
Filed: 1934-04-19
Abstract: Substantive and unspecified types of dyes, dyeing with; regenerated celluloses, dyeing.--The fastness of dyeings upon textile materials made of natural or regenerated cellulose or of wool or silk or of two or more of these fibres is improved by after-treatment with a dilute aqueous solution of a ternary sulphonium or quaternary phosphonium salt containing an alkyl radicle of at least 10 carbon atoms.  Such salts are of the general formul  R--X--S (R<1> R<11>)--Ac or R--X--P(R<1> R<11> R<111>)--Ac wherein R represents an alkyl radicle of at least 9 carbon atoms, R<1>, R<11> and R<111> represent lower alkyl radicles, Ac represents the radicle of an inorganic acid or of an organic sulphonic or carboxylic acid and X represents a group connected to R through a carbon atom when R contains only 9 carbon atoms or otherwise a linking group such as --CH2--, --C6H4--, --NH.CH2--, --NH.CO.CH2--, --CO.NH. CH2--, --O.CO.CH2--, --CO.O.CH2--, --O.CH2.CH2-- or --CO.NH.C6H4.CH2--. The following examples are specified.  (1) Cotton fabric, dyed with Chlorazol sky blue FF and rinsed, is immersed for 20 minutes in a 0,1 per cent aqueous solution at room temperature of dimethylhexadecylsulphonium methosulphate, rinsed and dried to obtain a dyeing of improved fastness to water, perspiration and acid cross-dyeing; the sulphonium salt may be replaced by benzylethyldodecylsulphonium chloride or stearamidobenzyldimethylsulphonium chloride.  (2) Cotton fabric, dyed with Chlorazol fast red K, is immersed for 20 minutes in a 0,1 per cent aqueous solution at room temperature of triethylhexadecylphosphonium bromide, rinsed and dried to obtain a dyeing of similarly improved fastness; the phosphonium salt may be replaced by triethyldodecylphosphonium bromide.  Specification 398,175 is referred to.  Benzylethyldodecylsulphonium chloride is obtained by treating with benzyl chloride the product of reaction of dodecylmercaptan and ethyl chloride in presence of caustic soda. Stearamidobenzyldimethylsulphonium methosulphate is obtained by the action of dimethyl sulphate on the product of reaction of stearic acid on p-aminobenzylmethyl sulphide obtained by methylating p-nitrobenzylmercaptan and reducing the nitro group.
Patent GB-413832-A (GB)
Title: Improvements in or relating to the manufacture of seamless casings of regenerated cellulose from viscose, cuprammonium cellulose or the like
IPC: B29C48/10
Filed: 1933-04-24
Abstract: <PICT:0413832/IV/1> Apparatus for making seamless casings of regenerated cellulose from viscose, cuprammonium cellulose, or other solutions comprises an annular extrusion nozzle and a detachable and collapsable mandrel which is preferably expanded by means of a non-compressible fluid such as water.  The mandrel may be deflated or removed when starting the operation but as soon as the tube of regenerated cellulose issues from the annular orifice and is taken up by the rollers in the precipitating bath, the mandrel is inserted through the top of the nozzle and inflated to the required size. This may be effected by the introduction of a measured quantity of liquid.  As shown in Fig. 1 an annular nozzle A is arranged in a coagulating bath F.  A collapsable former C consisting of a rubber envelope is kept in position by a tube I through which liquid for inflating the former is introduced. Precipitating liquid fed through the pipe E bathes the interior of the extruded tube J.  An overflow D is provided for removal of excess precipitating liquid.  The extruded tube J passes round the rollers K.
Patent GB-862814-A (GB)
Title: Improvements in and relating to the manufacture of fine structure metal nets
Inventor: GANSWEIN PAUL
IPC: G03F7/20
Filed: 1957-04-12
Abstract: 862,814. Electrolytically copying chromium grids. ZEISS JENA C. VEB. April 12, 1957, No. 12047/57. Class 41. Fine-structured metal nets, particularly for television pick-up tubes, object-carriers in electron microscopy, photographic test negatives, are made by producing a photomechanical copy of an original disposed on a transparent base in the form of a chromium grid on glass, electrolytically depositing another metal on the chromium grid and thereafter removing the electrolytically formed metal copy constituting the net from the chromium grid. The chromium grid may be produced by vaporizing chromium on to the glass in the areas not covered by a photographically produced negative resist image of the original, and is then treated to remove the passivity of the chromium as by immersion in a bath of an inorganic oxygenfree acid, followed by electroplating with gold, silver, palladium, nickel, or copper, typically cyanide copper. The chromium grid may be obtained by making a copy of a line-raster original and superimposing a further copy at right angles to the first copy to produce a'cross grid. To obtain nets of finer structure than the original, the line raster of constant a may be displaced parallel to itself (n - 1) times by an amount a/n in each direction.
Patent GB-740774-A (GB)
Title: Heat-exchanger
Inventor: LLEWELLYN WILLIAM ALVA MORGAN
IPC: B01D1/06
Filed: 1953-05-01
Abstract: <PICT:0740774/III/1> An evaporator for the concentration of aqueous solutions of acids comprises a long tube 5 suspended from one end and made of material of limited tensile strength such as carbon or lead and surrounded by a heating jacket 14, a spring 18 being provided at an intermediate point along the length of the tube and serving to subject the tube above it to an upward force against gravity. In the form shown, the tube is made in lengths interconnected by collars 10 the joints between the mating ends of the tube sections being sealed by a resin-bonded carbon cement or by gaskets 12 of acid resistant material such as neoprene.  The upper end of the spring abuts the lower end of one of the collars 10 at an intermediate point in the tube length and the lower end of the spring is supported by the ends of screws 20 either directly or indirectly through a seating ring 19. The screws 20 pass through the jacket 14 and through a split reinforcement ring 21 welded to the jacket.  The arrangement is such that the tube 5 is supported by the spring irrespective of the effects of relative thermal expansion between the tube and its jacket.  The upper end of the tube may incorporate a ball joint and is connected to a condenser.
Patent GB-1510103-A (GB)
Title: Metallic particle detection apparatus
IPC: G01N15/06
Filed: 1974-03-19
Abstract: 1510103 Detecting metallic particles electrically AGFA GEVAERT 17 March 1975 [19 March 1974] 12167/74 Heading G1N Metallic particles in a flow of a dielectric medium or a web of plastics material are detected by passing the medium or web through an inductor forming part of a parallel resonant circuit and detecting changes in phase of the signal appearing in the resonant circuit. The output tube of a hopper, Fig. 1 (not shown) is surrounded by coil 14 connected with capacitors 21a, b to form a parallel resonant circuit which is coupled with an oscillator 23, Fig. 8 (not shown). The output from the resonant circuit is fed via two channels to a phase discriminator 29 each channel including emitter followers 24, 25 and trigger circuits 26, 28 for converting the sinusoidal output to squarewaves and one of the channels including an LC 90 degrees phase shifter 27, Fig. 5 (not shown). In the absence of any metallic particles in the granulate material the discriminator output is zero, the discriminator being in the form of a digital multiplier. However if a metallic particle passes through the coil 14 the inductance and or losses in the resonant circuit alter the frequency of the A.C. signal in the resonant circuit. The phase shifter 27 now shifts the signal 90 degrees ## dependent upon the change in frequency with the result that the output of the discriminator is non-zero and the signal after amplification at 30 may be used to actuate an alarm. Territe bars, conductive bars and a short circuiting ring may be employed with coil 14 round the tube to obtain a uniform field across the hopper tube, Fig. 2 (not shown). In addition coil 14 may be in the form of a plurality of coils connected in parallel disposed along the tube so that a long combined coil is obtained which keeps the inductance low, Fig. 3 (not shown).
Patent GB-936894-A (GB)
Title: Novel steroid compounds and processes for the preparation thereof
IPC: C07J75/00
Filed: 1961-05-17
Abstract: The invention comprises the 17-acyloxy-9a , 10a -epoxy-19-nor-androst-4-en-3-ones of the formula: <FORM:0936894/IV(a)/1> wherein OAc represents an acyloxy radical, and a process for the preparation thereof in which a 3b -methyl-7-keto-8b -(g -keto-butyl)-8a ,9a -epoxy-3a , 4b - [31-acyloxy-(21,11) -cyclopentano]-decahydronaphthalene compound of the formula: <FORM:0936894/IV(a)/2> is cyclised by reaction with an alkali metal acylate, in the presence of the hydroxide of the same metal, so as to yield the corresponding 17b -acyloxy derivative of 9a ,10a -epoxy-19-nor-androst-4-en-3-one.  Specification 914,734 also is referred to.
Patent GB-439403-A (GB)
Title: Process for the production of coloured designs on articles of aluminium
IPC: C25D11/18
Filed: 1935-04-24
Abstract: Coloured designs are produced on aluminium articles by applying to the oxidized surfaces of such articles designs in a water-repellant material which may itself be coloured, and then colouring the exposed parts of the oxidized surfaces with colouring-matter dissolved in water.  The following examples are described: (1) a yellow-orange design is produced on aluminium oxidized by electrolysis, by applying beeswax coloured yellow by the addition of chryso$idine, by means of heated dies, and the remaining parts of the surface are dyed blue by immersion in an aqueous bath containing alizarinsaphirol B; (2) a colourless design is printed on oxidized aluminium by applying paraffin wax by means of heated dies, a green design is then applied using paraffin wax mixed with chrome green, and the remaining parts are dyed orange by immersion in an aqueous orange bath; (3) a solution comprising alcohol, turpentine and an oil-soluble dye such as aminoazotoluol is applied to oxidized aluminium using a spray pistol and stencils, and the background is coloured blue-red by an aqueous solution of azofuchsine.ALSO:Designs are printed on oxidized aluminium by means of colourless beeswax coloured yellow by the addition of 3 per cent by weight of chryso<\>uidine, or by means of paraffin wax coloured by the addition of 10 per cent by weight of chrome oxide green.